SELVA MARINE Blue Whale 250 EFI, Service Manual

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6P23H11
6-58
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9
3. Select the forward gear shim(s) (T2) as
follows.
Example:
If
“ T2 ” is 1.25 mm, then the forward gear
shim is 1.22 mm.
If
“ T2 ” is 1.20 mm, then the forward gear
shim is 1.18 mm.
Selecting the propeller shaft shim
1. Turn the taper roller bearing outer race
1
2 or 3 times to seat the rollers, and
then measure the bearing height (M6) as
shown.
NOTE:
• Select the shim thickness (T ’ 4) by using the
specified measurement(s) and the calcula-
tion formula.
• Measure the taper roller bearing at 3 points
to find the height average.
2. Install the thrust bearing
4
onto the pro-
peller shaft
5
, and then measure the
propeller shaft flange and thrust bearing
thickness (M7) as shown.
Calculated numeral
at 1/100 place
Rounded numeral
1, 2 0
3, 4, 5 2
6, 7, 8 5
9, 10 8
Available shim thicknesses:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40, and
0.50 mm
S69J6705
T´4
Shimming plate
2
: 90890-06701
Digital caliper
3
: 90890-06704
Shimming (counter rotation model)